What to Look for in a Modem Modems are pretty simple as far as computer devices go. However, when I called the help desk to notify that I was done they experienced another problem. Issue 2: The new modem cannot be added to my account.

As a result the support person asked me to swap it out and install the Comcast modem. I went back to the Comcast local office to escalate the problem again.

The store manager and experts on site were confused like I was because they could not figure out why the unit cannot be added to my account. The store Best Data Smart One Voice Modem called their experts on the phone and concluded that this Arris modem is too advanced and they are not ready to support it. As a result, they loaned me a Best Data Smart One Voice Modem for free until the problem is resolved.

Two weeks later, I called the help desk and the support person worked with me and succeeded to get the unit activated and added to my account. Meaning that the installation is now done. Issue 3: As a result you don't know what transfer rate to expect when testing.

Altice One

Issue 4: The wifi transfer rate mbps when the client is near the router. It goes down like hell to mbps when the laptop is 40 or 50 feet away.

Installed a tp link Router in access point mode. This way I can select what frequency to use.

Next steps: Continue to test for one week by using the tp link Router in access point mode. However, it seems that it was not tested before releasing it to the customer. Also, the Comcast support team was not prepared to support this device. As a result, I will not recommend this device to a friend or family. Yes, this modem is compatible with Xfinity Internet and Vocie.